Microcode rhymes with:
copycode, anode, boatload, borrowed, carload, caseload, cathode, copycode, crossroad, diode, download, eckenrode, elbowed, episode, inroad, mustachioed, nematode, overload, patnode, payload, planeload, radioed, railroad, rexroad, richaud, shipload, tiptoed, torpedoed, truckload, unitrode, winnowed, workload
Microcode sounds like:
manicurist, mccreight, mccright, mcright, mcwright, mischarged